diff --git a/fs/block_dev.c b/fs/block_dev.c
index 8cc144ffc3828ecfad6f6b432611be5ddc44f2a8..4346468139e80247e6db85d389a072cedf0d52a0 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1031,7 +1031,7 @@ do_open(struct block_device *bdev, struct file *file, unsigned int subclass)
 				rescan_partitions(bdev->bd_disk, bdev);
 		} else {
 			mutex_lock_nested(&bdev->bd_contains->bd_mutex,
-					  BD_MUTEX_PARTITION);
+					  BD_MUTEX_WHOLE);
 			bdev->bd_contains->bd_part_count++;
 			mutex_unlock(&bdev->bd_contains->bd_mutex);
 		}